PIRA Code(s): 1C20.10 Set up time:1 minute Operation: Tip the tube with penny and feather upside down. The penny will fall faster than the feather. Then, use the pump to evacuate all of the air. Like before, turn the tube upside down and the two objects will fall at the same rate. Physics and Science Concepts: Uniform Acceleration, Mechanics, Gravity Safety: Do not crack tube.
Must check out demonstration 3B30.30 to obtain and use pump.
PIRA Code(s): 1D60.10 Set up time:1 minute Operation: Press down on the inside of the cup. Turn the cart over, and stick the pin in the hole that protrudes from the bottom of the cart. Place the ball inside the cup. Then, push the car at a constant velocity as you gently pull the string. The ball should pop up and land in the cup again. Physics and Science Concepts: Mechanics, Motion in Two Dimensions, Projectile Motion Safety: None
PIRA Code(s): 1M20.10 Set up time:none Operation: These may be used by themselves or with other demonstrations. Physics and Science Concepts: Mechanics, Mechanical Advantage, Simple Machines Safety: None
PIRA Code(s): 1M40.10 Set up time:5 minutes Operation: Hook the bowling ball onto the chain. Pull the bowling ball back until it reaches your nose. Release the ball and do not move. Let the ball come back and show how it will not reach your nose again. *For use in lecture room 131. Physics and Science Concepts: Mechanics, Work and Energy Safety: Do not give the ball an initial velocity or move forward once the ball is release. Warning: it’s hard not to flinch.
PIRA Code(s): 1N30.10 Set up time:1 minute Operation: Pull back a number of balls and let them collide with the other balls, allowing the same number of balls to be released on the other side. Physics and Science Concepts: Conservation of linear momentum Safety: Align the balls for the best results. Do not allow the strings to tangle.
PIRA Code(s): 3D32.15 Set up time:No setup required. Operation: First, slide blow into the mouthpiece located at the top of the whistle. Next, move the piston to create different frequencies. If you have trouble moving the piston and blowing into the whistle simultaneously, have another person work the piston. Physics and Science Concepts: Waves, Oscillations, Frequency, Pitch Safety: Do not blow too hard or for extended periods of time as this may cause dizziness or headaches. Clean the mouthpiece in between use.
PIRA Code(s): 4A30.10 Set up time:1 minute Operation: Use a Bunsen burner to heat a bimetal strip and it will bend Physics and Science Concepts: Thermodynamics, Thermal Properties of Matter, Thermal Expansion Safety: Use caution when dealing with the Bunsen burner. Bunsen burner not included.
PIRA Code(s): 4E30.10 Set up time:5 minutes Operation: Fill sphere with water and submerge in buckets of water or liquid nitrogen at different temperatures. Dewar of liquid nitrogen and bucket can be obtained in the physics machine shop. Physics and Science Concepts: Gas Laws, Thermodynamics Safety: Always wear protective clothing when handling liquid nitrogen.
PIRA Code(s): 6D20.10 Set up time:none Operation: For best results, observe the sun, moon, or fluorescent lights through the films. Physics and Science Concepts: Optics, Light Spectrum Safety: Keep fingerprints off film.
PIRA Code(s): 6D30.10 Set up time:none Operation: Shine light through the rings so that they are reflected onto a wall. An overhead is good for this. Turn the screws on the frame to change the interference pattern. Physics and Science Concepts: Interference Safety: Over head projector may be obtained from demo 9A36.10.